gcc/testsuite/gcc.dg/pr87874.c

   1 /* { dg-do compile { target int128 } } */
   2 /* { dg-options "-g -O1 -fgcse -fno-dce -fno-tree-ccp -fno-tree-coalesce-vars -fno-tree-copy-prop -fno-tree-dce -fno-tree-dominator-opts -fno-tree-fre -fno-tree-loop-optimize -fno-tree-sink" } */
   3
   4 int *vk;
   5 int m2;
   6 __int128 nb;
   7
   8 void
   9 em (int u5, int fo, int s7)
  10 {
  11   for (;;)
  12     {
  13       long int es;
  14
  15       es = !!u5 ? (!!fo && !!m2) : fo;
  16       if (es == 0)
  17         if (nb == *vk)
  18           {
  19             const unsigned long long int uint64_max = 18446744073709551615ull;
  20             __int128 ks = uint64_max / 2 + 1;
  21
  22             while (s7 < 1)
  23               while (nb < 2)
  24                 {
  25                   for (ks = 0; ks < 3; ++ks)
  26                     {
  27                     }
  28
  29                   ++nb;
  30                 }
  31           }
  32     }
  33 }